diff --git a/default.nix b/default.nix
index c6d172a..b31c5c7 100644
--- a/default.nix
+++ b/default.nix
@@ -9,7 +9,7 @@ in
 with pkgs; stdenv.mkDerivation {
 	name = "solo";
 	outputs = [ "out" ];
-	src = with lib; builtins.filterSource (path: type: !(hasSuffix path "hex" || hasSuffix path "sha256")) src;
+	src = with lib; builtins.filterSource (path: type: !(hasSuffix path "hex" || hasSuffix path "sha256" || baseNameOf path == "result")) src;
 	buildInputs = [ gnumake gcc gcc-arm-embedded-8 git python-with-my-packages ];
 	phases = [ "unpackPhase" "configurePhase" "buildPhase" "installPhase" ];
 	installPhase = ''